A dust cleaning door device for flue outlet of substrate glass kiln

Abstract

The present application discloses a cleaning door device for a flue outlet of a substrate glass kiln; it relates to the field of glass manufacturing, and comprises a cover door, the cover door is slidably connected with a cleaning door, a fixing screw is provided on the cover door, a pressure rod is rotatably connected to the fixing screw, and the rotation axis of the pressure rod is perpendicular to the plane of the cover door; the pressure rod is connected with a pressure block for abutting the cleaning door, and the pressure rod rotates to drive the pressure block to abut or disengage from the cleaning door; a limiting assembly for limiting the rotation of the pressure rod is provided on the fixing screw; the present application provides a sealing effect for the sliding door by setting the pressure block and pressure rod; the cleaning tool bracket provides a labor-saving effect for the cleaning operation tool, improves the operation efficiency to a certain extent, shortens the time of the cleaning operation, and thus reduces the negative impact of the operation on the melting process and quality.

Description

Technical Field

[0001] The present application relates to the field of cover glass manufacturing, and in particular to a dust cleaning door device for a flue outlet of a substrate glass kiln. Background Art

[0002] The stability of the furnace pressure of overflow glass kiln is related to the atmosphere and temperature distribution in the furnace, which is crucial to the stability of the melting quality. There are many factors that affect the furnace pressure, and the most common factor is the ash accumulation and blockage of the flue of the pool furnace. Therefore, the flue should be checked and cleaned regularly to prevent ash accumulation or coking.

[0003] A Chinese patent with announcement number CN212152061U discloses a cover glass kiln, which includes an air supply box, which is provided with a cover door, and a cleaning door is provided on the cover door. A plug plate is provided to be slidably connected with a card slot, so that the cleaning door can be opened or closed, and the plug plate is pulled open, and the flue opening can be cleaned by a cleaning tool. The disadvantage of the cleaning door structure is that after the cleaning door slides many times, the mating part between it and the cover door will be worn, so that the cleaning door cannot completely seal the cover door, thereby causing cold air to be sucked into the flue, changing the furnace pressure in the furnace, and causing yield loss. Utility Model Content

[0004] In order to improve the sealing between the cover door and the cleaning door, the present application provides a cleaning door device for the flue outlet of a substrate glass kiln.

[0005] The present application provides a substrate glass furnace flue port ash cleaning door device, which adopts the following technical solution:

[0006] A dust cleaning door device for a flue outlet of a substrate glass kiln comprises a cover door, the cover door is slidably connected to the dust cleaning door, a fixing screw is provided on the cover door, a pressure rod is rotatably connected to the fixing screw, and the rotation axis of the pressure rod is perpendicular to the plane of the cover door; a pressure block for abutting the dust cleaning door is provided on the pressure rod, and the pressure rod rotates to drive the pressure block to abut or disengage from the dust cleaning door; a limiting component for limiting the rotation of the pressure rod is provided on the fixing screw.

[0007] By adopting the above technical solution, when it is necessary to clean the accumulated dust, the limit of the limit assembly is canceled, and then the pressure rod is rotated to make the pressure block disengage from the cleaning door, the cleaning door is slid to a suitable position, and the cleaning tool is inserted. After the cleaning work is completed, the cleaning tool is taken out, the cleaning door is closed, and the pressure rod is reset to make the pressure block abut against the cleaning door again, and the rotation of the pressure rod is limited by the limit assembly; the pressure block is pressed tightly against the cleaning door to prevent it from sliding at will, thereby preventing it from opening accidentally.

[0008] Optionally, a tightening screw is threadedly provided on the pressure rod, and the pressure block is fixedly connected to the tightening screw. The tightening screw rotates to drive the pressure block to approach or move away from the dust cleaning door.

[0009] By adopting the above technical solution, the pressure block can be driven to slide by rotating the tightening screw, so that the pressure block can be more tightly abutted against the cleaning door to prevent it from sliding; at the same time, when the pressure rod needs to be rotated, rotating the tightening screw to move the pressure block away from the cleaning door can also facilitate the rotation of the pressure rod.

[0010] Optionally, a handle is provided at one end of the tightening screw rod away from the pressing block.

[0011] By adopting the above technical solution, it is convenient to rotate the tightening screw rod.

[0012] Optionally, the limiting assembly includes a tightening nut and a limiting cylinder, the tightening nut is threadedly connected to the fixing screw, the limiting cylinder is sleeved on the fixing bolt, the pressure rod is located between the limiting cylinder and the tightening nut, and the tightening nut rotates to abut against or move away from the pressure rod.

[0013] By adopting the above technical solution, when the pressure rod needs to be rotated, the locking nut is rotated to move it away from the pressure rod to rotate the pressure rod. When limiting is required, the locking nut is rotated to press against the pressure rod to limit the rotation of the pressure strip.

[0014] Optionally, an observation window is provided on the dust cleaning door, a card slot is provided next to the observation window, and a glass plate is slidably connected to the card slot.

[0015] By adopting the above technical solution, the cleaning sliding door remains closed under normal production conditions, and the degree of coking or blockage in the flue can be checked through the observation window during daily inspection to determine whether cleaning is required; at the same time, the card slot method allows the glass plate to be replaced after reaching the end of its service life.

[0016] Optionally, a clearance fit is adopted between the card slot and the glass plate.

[0017] By adopting the above technical solution, it is ensured that there is no obstruction when disassembling or replacing the glass plate, and at the same time a small amount of cold air is allowed to flow into the flue from the gap, thereby cooling the glass plate to extend its service life.

[0018] Optionally, a bracket for mounting a dust cleaning tool is provided on the cover door, the bracket comprises two oppositely arranged legs, a support rod is provided between the two legs, and a sleeve is sleeved on the support rod.

[0019] By adopting the above technical solution, the dust cleaning tool is mounted on the bracket, which can reduce the labor intensity of the operation, improve the operation efficiency, and thus shorten the time of the cleaning operation.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] The opening of the cleaning door can be controlled as needed. Opening the cleaning door for cleaning has little impact on the furnace pressure, and thus has little impact on the melting process and quality. Secondly, the coking and blockage conditions of the flue opening can be observed at any time through the glass observation window on the cleaning door, and the flue opening can be cleaned in time according to the actual situation, which meets the requirements of daily inspection and cleaning of the flue opening. In addition, the block pressure rod provides a sealing effect for the sliding door; the cleaning tool bracket provides a labor-saving effect for the cleaning tool, which improves the working efficiency to a certain extent, shortens the cleaning time, and reduces the negative impact of the operation on the melting process and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall structural diagram of a substrate glass furnace flue port ash cleaning door device of the present application;

[0023] Figure 2 yes Figure 1 The diagram shows the status of the overall structure during cleaning.

[0024] Description of reference numerals:

[0025] 1. Cover door; 11. Fixing screw; 111. Limiting cylinder; 12. Pressing rod; 13. Tightening nut; 14. Tightening screw rod; 141. Handle; 15. Pressing block; 16. Support leg; 17. Support rod; 18. Sleeve 18; 2. Cleaning door; 21. Slot; 22. Glass plate; 3. Cleaning tools. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-2 This application is described in further detail.

[0027] The embodiment of the present application discloses a device for cleaning door of flue outlet of substrate glass kiln, which comprises a cover door 1, on which a cleaning port is provided, the preferred size of the cleaning port is 150mm*200mm, and a cleaning door 2 is slidably connected in the form of a slide groove, and the cleaning door 2 slides to open or close the cleaning port. It should be emphasized that the thickness of the cleaning door 2 must be greater than 4mm to ensure that the thermal deformation of the steel plate meets the requirements; the design requires a 2-4mm movable gap between the slide groove and the cleaning door 2 to ensure that the cleaning door 2 is not blocked when opening and closing, and the slide groove is welded to the flue outlet cleaning door 2. A handle is welded on the cleaning door 2 to facilitate opening and closing the door, and the specification is φ5mm round steel.

[0028] In order to facilitate observation of the dust accumulation in the flue, an observation window is provided on the ash cleaning door 2, and the preferred size of the opening is 60*90mm. A slot 21 for installing a glass plate 22 is provided next to the observation window. The glass plate 22 is a low expansion coefficient quartz glass or a high borosilicate glass sheet, and the preferred size is 68*100*5mm. A movable gap of 1-3mm should be maintained between the slot 21 and the glass plate 22 to ensure that there is no obstruction when disassembling or replacing the glass sheet; the slot 21 and the ash cleaning door 2 are welded. A gap of 1-2mm is reserved between the contact surface of the glass plate 22 and the ash cleaning door 2, allowing a small amount of cold air to flow into the flue from the gap, thereby cooling the glass plate 22 to extend its service life.

[0029] A fixing screw 11 is provided on the cover door 1, and the fixing screw 11 is perpendicular to the plane of the cover door 1. The root of the fixing screw 11 is welded to the flue cleaning door 2, and the top is connected to one end of the pressure rod 12 by a thread. A limiting cylinder 111 is sleeved on the fixing screw 11, and the fixing screw 11 extends out of the limiting cylinder 111, and is also threadedly connected with a tightening nut 13. The pressure rod 12 is located between the limiting cylinder 111 and the tightening nut 13, and the other end of the pressure rod 12 is connected to the tightening screw rod 14 by a thread. The tightening screw rod 14 is connected to the pressure block 15 by threads; when the cleaning door 2 needs to be opened, the tightening nut 13 is rotated to keep it away from the pressure rod 12; then the pressure rod 12 is rotated to keep the pressure block 15 away from the cleaning door 2; then the cleaning door 2 is gradually opened to a suitable opening according to the change in furnace pressure to ensure the normal operation of the cleaning tool; then the cleaning tool is lifted into the door to clean the flue opening; at the same time, in order to facilitate the rotation of the tightening screw rod 14, a handle 141 is provided at the end of the tightening screw rod 14 away from the pressure block 15.

[0030] In order to save more effort when using the cleaning tool, a bracket for setting up the cleaning tool 3 is further provided on the cover door 1, and the bracket includes two oppositely arranged legs 16, and a support rod 17 is provided between the two legs 16, and bolts are threadedly connected at both ends of the support rod 17 to fix it on the legs 16; a sleeve 18 is sleeved on the support rod 17, and during operation, the rear part of the cleaning tool 3 can rely on the bracket as a supporting point to save effort.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust cleaning door device for a flue outlet of a substrate glass furnace, comprising a cover door (1), wherein the cover door (1) is slidably connected to a dust cleaning door (2), characterized in that: The cover door (1) is provided with a fixed screw (11), and a pressure rod (12) is rotatably connected to the fixed screw (11), and the rotation axis of the pressure rod (12) is perpendicular to the plane of the cover door (1); the pressure rod (12) is connected to a pressure block (15) for abutting the cleaning door (2), and the pressure rod (12) rotates to drive the pressure block (15) to abut or disengage from the cleaning door (2); the fixed screw (11) is provided with a limit assembly for limiting the rotation of the pressure rod (12).

2. The substrate glass furnace flue port cleaning door device according to claim 1, characterized in that: A tightening screw rod (14) is threadedly provided on the pressure rod (12), and the pressure block (15) is connected to the tightening screw rod (14). The tightening screw rod (14) rotates to drive the pressure block (15) to move closer to or away from the dust cleaning door (2).

3. The dust cleaning door device for the flue port of a substrate glass furnace according to claim 2, characterized in that: A handle (141) is provided at one end of the tightening screw rod (14) away from the pressing block (15).

4. The dust cleaning door device for the flue port of a substrate glass furnace according to claim 1, characterized in that: The limiting assembly comprises a locking nut (13) and a limiting cylinder (111); the locking nut (13) is threadedly connected to the fixing screw (11); the limiting cylinder (111) is sleeved on the fixing screw (11); the pressure rod (12) is located between the limiting cylinder (111) and the locking nut (13); the locking nut (13) rotates to abut against or move away from the pressure rod (12).

5. The dust cleaning door device for the flue port of a substrate glass furnace according to claim 1, characterized in that: An observation window is provided on the dust cleaning door (2), a card slot (21) is provided next to the observation window, and a glass plate (22) is slidably connected in the card slot (21).

6. The dust cleaning door device for the flue port of a substrate glass furnace according to claim 5, characterized in that: The clamping slot (21) and the glass plate (22) are clearance-fitted.

7. The dust cleaning door device for the flue port of a substrate glass furnace according to claim 1, characterized in that: The cover door (1) is provided with a bracket for mounting a cleaning tool (3), the bracket comprising two oppositely arranged supporting legs (16), a supporting rod (17) being provided between the two supporting legs (16), and a sleeve (18) being sleeved on the supporting rod (17).

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